title: Note: A new angle-resolved proton energy spectrometer.
abstract: In typical laser-driven proton acceleration experiments Thomson parabola proton spectrometers are used to measure the proton spectra with very small acceptance angle in specific directions. Stacks composed of CR-39 nuclear track detectors, imaging plates, or radiochromic films are used to measure the angular distributions of the proton beams, respectively. In this paper, a new proton spectrometer, which can measure the spectra and angular distributions simultaneously, has been designed. Proton acceleration experiments performed on the Xtreme light III laser system demonstrates that the spectrometer can give angle-resolved spectra with a large acceptance angle. This will be conductive to revealing the acceleration mechanisms, optimization, and applications of laser-driven proton beams.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Zheng
authors.forename: L N
authors.initials: LN
authors.lastname: Su
authors.forename: M
authors.initials: M
authors.lastname: Liu
authors.forename: B C
authors.initials: BC
authors.lastname: Liu
authors.forename: Z W
authors.initials: ZW
authors.lastname: Shen
authors.forename: H T
authors.initials: HT
authors.lastname: Fan
authors.forename: Y T
authors.initials: YT
authors.lastname: Li
authors.forename: L M
authors.initials: LM
authors.lastname: Chen
authors.forename: X
authors.initials: X
authors.lastname: Lu
authors.forename: J L
authors.initials: JL
authors.lastname: Ma
authors.forename: W M
authors.initials: WM
authors.lastname: Wang
authors.forename: Z H
authors.initials: ZH
authors.lastname: Wang
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Wei
authors.forename: J
authors.initials: J
authors.lastname: Zhang